Laser processing issues of nanosized intermetallic Fe-Sn and metallic Sn particles

► Intermetallic Fe-Sn and metallic Sn nanoparticles synthesized by laser pyrolysis. ► Fe(CO)5 and Sn(CH3)4 were used as precursors. ► FeSn2, Sn and Fe3SnC phases were identified by XRD. ► Complex core-shell structural characteristics were found by HRTEM analysis. ► Higher magnetization was found in samples with increased Fe/Sn atomic ratio.